The rest of the wall is easy. So lets set that issue aside.
Its the wall by the porch that is challenging. So this wall is going to dictate everything.
#1. As I said, I would not cut this porch. We do a lot of concrete demo work on a weekly basis, you'd be amazed at how that slab is probably supported. You could be opening a can of worms. I would let someone else take the risk and screw up their porch before I take on that liability.
#2. Wood walls is not the end of the world. In this case, a wood wall is going to be far easier than block. Easier = LESS MONEY. Less money = SALE
#3. People want instant gratification. We live in a cell phone app age. The owners probably do not have any idea that something IS supporting THAT slab. They probably thing it's simply sitting on soil. Well - I'm betting there is a 4-8 inch VOID under the slab. So its your job to educate the home owner of potential complications.
"It's You vs. You"
"People Throw Rocks At Things That Shine"
My Equipment Brag List:
-1 CAT hat
-16 pairs of Hanes socks (the Heavy Duty model), many with holes.
-12 pairs of underwear, ranging from Joe Boxers to Jockey, many are in need of replacement. (no more photo requests please)
-hundreds of t-shirts. Some w/ grease stains, some torn & tattered.
-7 pairs of jeans, ranging from Levis to Polo to GAP. 1/2 of them have holes in 'em.
-1 pair of old worn out Nike shoes.